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● Histogram

This dialog box enables you to see the data concentration at
each brightness level in an image. You can specify the darkest
and brightest levels within an image, cut the levels and expand
the middle of the tonal range of the image.

[Channel]

Select a color to adjust either [Red], [Green],
or [Blue], or select [Master] to adjust all three
colors together when [Color] or [Color
(Documents)] is selected in [Color Mode].
Adjust the elements of grayscale when
[Grayscale] is selected in [Color Mode].

[Brightness]

Adjust the brightness of the image by
moving the slider

or entering values

(–127 to 127).

[Contrast]

Adjust the contrast of the image by moving
the slider

or entering values (–127 to

127).

[Reset]

Resets all the current settings to their default
values.